Home Tweakers' Asylum

Tweaks for systems, rooms and Do It Yourself (DIY) help. FAQ.

OK to use a larger value fuse in an outboard power supply?

This kind of ties in to the "More on Fuses" post below... I recently acquired an outboard power supply for my Squeezebox Duet that uses a 1 amp / 250V / 20mm / slow-blow ceramic fuse. I have a HiFi Tuning fuse on hand that I'd like to try out to see if it improves the sound. The fuse isn't marked but I'm pretty sure it is a 3.15 amp slow blow.

I've read that ceramic fuses are spec'd because the sand inside can absorb current inrush that would otherwise "flash" and burn out a glass fuse of the same value. I've also been told that HiFi Tuning fuses can blow upon current inrush and in some cases a larger value fuse should be used.

Is increasing the fuse size from 1A to 3.15A large enough that I am putting the power supply at risk or even something that could cause a fire? I live in a newer home with very stable power and have never had a problem with fuses blowing on any of my components.


This post is made possible by the generous support of people like you and our sponsors:
  Signature Sound   [ Signature Sound Lounge ]


Topic - OK to use a larger value fuse in an outboard power supply? - Dynamite Ham 15:23:00 05/17/17 (8)

FAQ

Post a Message!

Forgot Password?
Moniker (Username):
Password (Optional):
  Remember my Moniker & Password  (What's this?)    Eat Me
E-Mail (Optional):
Subject:
Message:   (Posts are subject to Content Rules)
Optional Link URL:
Optional Link Title:
Optional Image URL:
Upload Image:
E-mail Replies:  Automagically notify you when someone responds.